From 5600c8f6e55e677053b87b67b92e6b80aa1cabb4 Mon Sep 17 00:00:00 2001
From: Lei Jin <lei@fb.com>
Date: Wed, 17 Sep 2014 13:25:29 -0700
Subject: [PATCH] cuckoo table: return estimated size - 1

Summary:
This is to avoid cutting file prematurely and resulting file size to be
half of specified.

Test Plan: db_bench

Reviewers: sdong, yhchiang, igor

Reviewed By: igor

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D23541
---
 table/cuckoo_table_builder.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/table/cuckoo_table_builder.cc b/table/cuckoo_table_builder.cc
index e107071f2..1cf19e3aa 100644
--- a/table/cuckoo_table_builder.cc
+++ b/table/cuckoo_table_builder.cc
@@ -323,7 +323,7 @@ uint64_t CuckooTableBuilder::FileSize() const {
     expected_hash_table_size *= 2;
   }
   return (kvs_[0].first.size() + kvs_[0].second.size()) *
-    expected_hash_table_size;
+    expected_hash_table_size - 1;
 }
 
 // This method is invoked when there is no place to insert the target key.